Mammoth Lakes weather in August
August in Mammoth Lakes: nice, dry, with clean air — one of the weakest months to visit.
#11 of 12 months in Mammoth Lakes · #887 of 897 destinations to visit in August · comfort 18/100 (tier F)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Mammoth Lakes in August
No notes yet. Open Mammoth Lakes on the map to add the first one.
Mammoth Lakes climate normals — August
| Daytime high | 24°C / 75°F | 😎 nice |
|---|---|---|
| Nighttime low | 11°C / 52°F | |
| Rainfall | 25 mm / 1 in | ☀️ dry |
| Rainy days | 4 days | |
| Humidity | 52% | 🍃 comfortable |
| Dew point | 5°C / 41°F | |
| Sunshine | 12.3 h/day | |
| Daylight | 13.6 h | |
| Wind | 14 km/h / 8 mph | |
| Air quality (US AQI) | 47 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Mammoth Lakes?
Loading map…
Mammoth Lakes in August — FAQ
- Is August a good time to visit Mammoth Lakes?
- August in Mammoth Lakes: nice, dry, with clean air — one of the weakest months to visit. It ranks #11 of 12 months for Mammoth Lakes on SeasonMap's comfort score (18/100).
- What is the weather like in Mammoth Lakes in August?
- In August, Mammoth Lakes averages a daily high of 23.9°C and a low of 10.9°C, with about 24.5 mm of rain over roughly 4 rainy days.
- What is the air quality in Mammoth Lakes in August?
- Mammoth Lakes has a mean US Air Quality Index of about 47 in August.